US5727626A - Header tank of heat exchanger - Google Patents

Header tank of heat exchanger Download PDF

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Publication number
US5727626A
US5727626A US08/594,325 US59432596A US5727626A US 5727626 A US5727626 A US 5727626A US 59432596 A US59432596 A US 59432596A US 5727626 A US5727626 A US 5727626A
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US
United States
Prior art keywords
plate
header tank
tank
partition plates
plates
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
US08/594,325
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English (en)
Inventor
Soichi Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valeo Thermal Systems Japan Corp
Original Assignee
Zexel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zexel Corp filed Critical Zexel Corp
Priority to US08/594,325 priority Critical patent/US5727626A/en
Application granted granted Critical
Publication of US5727626A publication Critical patent/US5727626A/en
Assigned to BOSCH AUTOMOTIVE SYSTEMS CORPORATION reassignment BOSCH AUTOMOTIVE SYSTEMS CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ZEXEL CORPORATION
Assigned to ZEXEL VALEO CLIMATE CONTROL CORPORATION reassignment ZEXEL VALEO CLIMATE CONTROL CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BOSCH AUTOMOTIVE SYSTEMS CORPORATION
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F28F9/0204—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions
    • F28F9/0209—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions
    • F28F9/0212—Header boxes having their inner space divided by partitions for elongated header box, e.g. with transversal and longitudinal partitions having only transversal partitions the partitions being separate elements attached to header boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
    • F28F9/0224—Header boxes formed by sealing end plates into covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/008—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for vehicles
    • F28D2021/0084—Condensers

Definitions

  • This invention relates to a header tank of heat exchanger formed by two radially divided parts consisting of an end plate and a tank plate, particularly to a structure of closing the ends of the header tank.
  • Heat exchangers of the parallel flow type conventionally comprise a plurality of tubes and corrugated fins stacked alternately, and both ends of the stacked tubes are inserted into insertion openings provided in the header tanks to be joined therewith.
  • the header tank formed by two divided parts consisting of the end plate and the tank plate, which are assembled in radial direction, is known (for example, as shown in Japanese Utility Model Laid-Open publication No. Hei 3(1991)-87080).
  • each header tank The upper and lower end openings of each header tank are closed with blank caps formed by press working, and, inside the header tank, there are provided partition plates as necessary to longitudinally partition the header tank.
  • Each partition plate is placed between the end plate and the tank plate and positioned by caulking claws (pressing members) provided at the joining portion of the tank plate towards the end plate, thereupon the partition plate is blazed together with the header tank for integral connection therewith.
  • a heat exchange medium flows through a plurality of zig zag passages between an inlet joint and an outlet joint provided on the header tanks.
  • this proposed method is disadvantageous in that when the partition plates are assembled with the end openings of the header tank and secured by blazing in a furnace, a gap is formed between the partition plate and the header thank by deformation of the header tank during heating, so that reliable blazing of the partition plate with the header tank cannot be accomplished.
  • the object of the present invention is to provide a header thank of heat exchanger which eliminates the use of blank caps, but, instead, end partition plates, which are in the same or closely similar configuration to the partition plates used inside the header tank, are used for closing the end openings of the header tank, thereby to establish reliable blazing of the partition plates with the header tank.
  • end partition plates which are in the same or closely similar configuration to the partition plates used inside the header tank, are used for closing the end openings of the header tank, thereby to establish reliable blazing of the partition plates with the header tank.
  • the header tank of heat exchanger is, in a parallel flow type heat exchanger comprising a plurality of tubes and corrugated fins stacked alternately, wherein both ends of the stacked tubes are connected with the header tanks in communication therewith, each header tank includes partition plates therein, and the header tank is formed by two radially divided parts consisting of an end plate and a tank plate, pressing members are provided on one of the end plate and the tank plate for pressing one of the plates against the other plate for engagement therewith, characterized in that end partition plates are provided at the ends of the header tank, and the pressing members on one of the plates are located near the positions where the end partition plates are provided.
  • assembly of the header tank is carried out by first setting the partition plates and the end partition plates at the respective positions in the tank plate and the end plate, engaging the tank plate with the end plate by pressing the tank plate against the end plate, and bending the pressing members to complete the assembly of the header tank with the partition plates and the end partition plates mounted thereon. Thereafter, the ends of the stacked flat tubes are inserted into insertion openings of each header tank to assemble the heat exchanger, whereupon the assembled heat exchanger is brazed in a furnace for integral connection.
  • the use of the end partition plate in the same configuration with that of the partition plate so as to establish reliable closing of the end openings of the header tank thereby the use of conventional blank caps is no longer required.
  • the length of header tank is made shorter, and, particularly, quantities of heat exchange medium and lubricating oil collected in the lower end portion of the header tank are reduced, which, in turn, allows to reduce quantities of heat exchange medium and lubricating oil for use.
  • the use of conventional blank caps is eliminated by the use of common parts so as to reduce the number of parts. This allows reduction of the number of processing steps and associated controlling works, which, in turn, lowers the manufacturing cost.
  • reliable brazing is made possible, and, consequently, to yield is increased with the improved and reliable blazing.
  • FIG. 1 is a front view of a condenser of a first embodiment of the invention
  • FIG. 2 is a fragmental sectional view of the header tank taken along the line II--II in FIG. 1;
  • FIG. 3 is a fragmental sectional view of the header tank taken in the direction of an arrow mark III in FIG. 2;
  • FIG. 4 is a fragmental sectional view taken along the line IV--IV in FIG. 3 for illustrating the end partition plate and the partition plate being mounted;
  • FIG. 5 is a plan view of the end partition plate and the partition plate
  • FIG. 6 is a side view of the end partition plate and the partition plate
  • FIG. 7 is a front view of the header tank of a second embodiment of the invention.
  • FIG. 8 is a plan view of the essential portion of a side plate of a third embodiment of the invention.
  • FIG. 9 is a front view of the header tank and showing the side plate.
  • a heat exchanger 1 of this embodiment is a condenser made of aluminum or aluminum alloy which is mainly used for the car air-conditioner, comprising a plurality of flat tubes 2 and corrugated fins 3 stacked alternately, and both ends of the stacked flat tubes 2 are respectively inserted into insertion openings 5 of a header tank 4 for connection therewith.
  • Numeral 6 designates a side plate having a U-shaped cross-section, each provided at the upper end and the lower end of the stacked flat tubes 2. Each end of the side plate 6 is inserted into an exclusive insertion opening 5 provided in the header tank 4, and, after insertion, each forward end of the side plate is bent longitudinally of the header tank 4.
  • the header tank 4 is formed by two radially engaged parts consisting of an end plate 7 and a tank plate 8.
  • the end plate 7 has an engagement portion 7a and the tank plate 8 has an engagement portion 8a with a step 8b.
  • an inlet joint 9 is connected to one of the header tanks 4 and an outlet joint 10 is connected to the other header tank 4.
  • partition plates 12 are provided inside the both header tanks 4 as necessary to partition the header tank longitudinally.
  • Each end of each header thank is closed, at a location outside of the side plate 6, by an end partition plate 13 which is the same configuration as the partition plate 12.
  • a heat exchange medium flows through a plurality of zig zag passages between the inlet joint 9 and the outlet joint 10.
  • the partition plate 12 and the end partition plate 13 are, as, for example, shown in FIGS. 4-6, made of a plate of 1.5 mm thickness t formed in the shape corresponding to a volume cross section of the header tank and having insertion portions 14, 15 extended into three directions on the same plane and which are formed integrally with the plate. Extended directions of these insertion portions are not limited to three directions. These insertion portions are dimensioned to a predetermined width and an extended length which is substantially equal to a wall thickness of the header tank.
  • the insertion portions 14, 15 of the partition plate 12 and the end partition plate 13 are so arranged that, in mounting the partition plate 12 and the end partition plate 13 on the header tank 4, the insertion portion 14 can be located at the side of the end plate 7 and the other insertion portion 15 can be located at the side of the tank plate 8.
  • the corresponding insertion grooves 16, 17 are provided at predetermined positions in the end plate 7 and the tank plate 8, respectively.
  • the insertion grooves 16, 17 are formed in the thickness t of the partition plate 12 and the end partition plate 13 and in the width of the insertion portions 14, 15.
  • the engaging portion 8a of the tank plate 8 of the header tank 4 includes a plurality of pressing members 19 (six (6) pressing members in this embodiment) extended into the same plane with the engaging portion 8a and arranged at regular intervals.
  • the engaging portion 7a of the end plate 7 is engaged with the engaging portion 8a of the tank plate 8 and the pressing members 19 of the tank plate 8 are bent by means of a press, so that the end plate 7 and the tank plate 8 are assembled with the end plate 7 being pressed against the tank plate 8, and brazed together.
  • the upper and lower pressing members 19 are, as shown in FIG. 3, located at the upper and lower ends of the header tank where the respective end partition plates 13 are provided.
  • the width T of the pressing member 19 is dimensioned, for example, to 5 mm, and, consequently, the end partition plate 13 is in the width T of the pressing member.
  • each insertion portion 14 of each partition plate 12 and each end partition plate 13 is inserted into the corresponding insertion groove 16 of the end plate 7, and the other insertion portion 15 of each of each partition plate 12 and end partition plate 13 into the corresponding insertion groove 17 of the tank plate 8, and the engaging portion 7a of the end plate 7 is engaged with the engaging portion 8a of the tank plate 8.
  • the tank plate 8 is pressed against the end plate 7, and each pressing member 19 is bent, thereby to assemble the header tank 4 with the partition plates 12 and the end partition plates 13 mounted thereon.
  • the ends of the stacked flat tubes 2 are inserted into the insertion openings 5 of each header tank 4 to assemble the heat exchanger 1 which is blazed in a furnace for integral assembly.
  • the end partition plates 13 respectively placed at the upper and lower ends of the header tank 4 are each being externally pressed by the pressing member 19 which is wider than the width t of the end partition plate 13. This prevents radially opening of the tank plate 8 and the end plate 7 caused by deformation of the header tank 4 under heating during blazing in the furnace. Consequently, a gap is not formed between the end plate 7 and the tank plate 8 of the header tank 4, which establishes reliable assembly of the partition plates 12 and the end partition plates 13, which, in turn, assures reliable brazing.
  • the end openings of the header tank can be reliably closed with the end partition plates which are the same configuration with the partition plates, the use of conventional blank caps is no longer required.
  • the length of the header tank can be made shorter, and, particularly, quantities of heat exchange medium and lubricating oil collected at the lower portion of the header tank can be reduced, thereby to reduce quantities of heat exchange medium and oil for use.
  • the pressing members 19 are so provided to the tank plate 8 that, as shown in FIG. 7, they are respectively located at both sides of the end partition plate 13 provided on the header tank 4.
  • the positions of the pressing members 19 at both sides of the end partition plate 13 are within a range of pitch of the flat tubes 2 (namely, a length L between the adjacent flat tubes 2).
  • each end partition plate is externally pressed by the pressing members located at both sides thereof and assembled in this state. Accordingly, the second embodiment can also provide the same effect as that of the first embodiment.
  • this third embodiment has a structure wherein the forward end of the side plate is adapted to press the end partition plate inwardly.
  • the insertion opening 5 for the side plate 6 is provided at the end of the header tank 4, rather than for the end partition plate 13.
  • the forward end of the side plate 6, which has been inserted into the insertion opening 5, is bent at 21 and this bent portion 21 presses the center of the end partition plate 13 inwardly of the header tank 4.
  • this structure prevents displacement of the end partition plate 13 in the axial direction of the header tank during assembly of the end partition plate 13.
  • the side plate is not always necessary to be formed for insertion into an exclusive insertion opening.
  • a notch may be formed at the end of the end plate 7 so that the side plate is engaged with the notch and the forward end of the side plate is bent.
  • a recess may be formed at the center of the end partition plate, and the forward end of the bent portion 21 is brought into pressure contact with the recess, thereby to enhance the strength for supporting the end partition plate.
  • the aforementioned respective embodiments have been described for the case where the tank plate of the header tank is outside, but it is also possible to arrange the end plate on the outside and the tank plate inside.
  • the tank plate and the end plate of the header tank are preferably in semi-circular or semi-oval in view of pressure resistance.
  • the pressing members are provided at locations corresponding to the positions where the end partition plates are arranged.
  • a plurality of pressing members may also be provided at locations other than those corresponding to the end partition plates or both ends of the header tank.
  • the end partition plates and the partition plates are preferably in the same configuration for the purpose of using common parts.
  • the end partition plates are thicker than the partition plates in view of pressure resistance.
  • the side plates are located inside the end partition plates, but the side plates may be arranged outside.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
US08/594,325 1993-07-20 1996-01-30 Header tank of heat exchanger Expired - Fee Related US5727626A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US08/594,325 US5727626A (en) 1993-07-20 1996-01-30 Header tank of heat exchanger

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP17907793A JP3329893B2 (ja) 1993-07-20 1993-07-20 熱交換器のヘッダタンク
JP5-179077 1993-07-20
US27665894A 1994-07-19 1994-07-19
US08/594,325 US5727626A (en) 1993-07-20 1996-01-30 Header tank of heat exchanger

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US27665894A Continuation 1993-07-20 1994-07-19

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220342B1 (en) * 1995-02-16 2001-04-24 Zexel Corporation Laminated heat exchanger
US20050173104A1 (en) * 2003-12-08 2005-08-11 Calsonic Kansei Corporation Tank structure
US20060042309A1 (en) * 2004-09-02 2006-03-02 Visteon Global Technologies, Inc. Condenser assembly having a mounting rib
EP1970661A1 (en) * 2007-03-14 2008-09-17 Sanden Corporation Heat exchanger
US20130333867A1 (en) * 2010-12-07 2013-12-19 Valeo Systemes Thermiques Assembly Of Two Parts Crimped One Over The Other
US20150027666A1 (en) * 2013-07-25 2015-01-29 Yutaka Giken Co., Ltd. Heat exchanger and heat exchange device
US9151540B2 (en) 2010-06-29 2015-10-06 Johnson Controls Technology Company Multichannel heat exchanger tubes with flow path inlet sections
JP2015227737A (ja) * 2014-05-30 2015-12-17 株式会社日本クライメイトシステムズ 熱交換器用ヘッダ
US9267737B2 (en) 2010-06-29 2016-02-23 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
US20160238326A1 (en) * 2015-02-16 2016-08-18 Hanon Systems Header tank of heat exchanger and heat exchanger having the same
KR20160100821A (ko) * 2015-02-16 2016-08-24 한온시스템 주식회사 열교환기의 헤더탱크 및 이를 포함하는 열교환기
US10228170B2 (en) 2012-12-21 2019-03-12 Trane International Inc. Refrigerant distributor of micro-channel heat exchanger
US10295278B2 (en) * 2011-05-26 2019-05-21 Valeo Systemes Thermiques Header box, heat exchanger comprising said header box and method of crimping such a box

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3808594B2 (ja) * 1997-06-26 2006-08-16 カルソニックカンセイ株式会社 パイプ
JP4679717B2 (ja) * 2000-12-12 2011-04-27 株式会社ヴァレオサーマルシステムズ 熱交換器
JP2003028593A (ja) * 2001-07-18 2003-01-29 Zexel Valeo Climate Control Corp 熱交換器
JP5085492B2 (ja) * 2008-09-30 2012-11-28 カルソニックカンセイ株式会社 熱交換器
JP5953002B2 (ja) * 2011-01-14 2016-07-13 株式会社ティラド 熱交換器のヘッダの製造方法
KR102220479B1 (ko) * 2019-01-08 2021-02-25 (주)삼원산업사 열교환기의 헤더파이프 장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917180A (en) * 1989-03-27 1990-04-17 General Motors Corporation Heat exchanger with laminated header and tank and method of manufacture
JPH0387080A (ja) * 1989-07-06 1991-04-11 General Electric Co <Ge> レーザ媒質用の入出射口
US5107926A (en) * 1990-04-03 1992-04-28 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5207738A (en) * 1992-08-28 1993-05-04 Valeo Heat exchanger manifold assembly
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
US5236044A (en) * 1990-04-05 1993-08-17 Zexel Corporation Heat exchanger tank partition device
US5329995A (en) * 1992-08-28 1994-07-19 Valeo Engine Cooling Incorporated Heat exchanger assembly I
US5341872A (en) * 1993-05-19 1994-08-30 Valeo Engine Cooling Inc. Heat exchanger and manifold therefor, and method of assembly thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4917180A (en) * 1989-03-27 1990-04-17 General Motors Corporation Heat exchanger with laminated header and tank and method of manufacture
JPH0387080A (ja) * 1989-07-06 1991-04-11 General Electric Co <Ge> レーザ媒質用の入出射口
US5107926A (en) * 1990-04-03 1992-04-28 Thermal Components, Inc. Manifold assembly for a parallel flow heat exchanger
US5236044A (en) * 1990-04-05 1993-08-17 Zexel Corporation Heat exchanger tank partition device
US5207738A (en) * 1992-08-28 1993-05-04 Valeo Heat exchanger manifold assembly
US5329995A (en) * 1992-08-28 1994-07-19 Valeo Engine Cooling Incorporated Heat exchanger assembly I
US5226490A (en) * 1992-10-26 1993-07-13 General Motors Corporation Extruded tank pocket design for separator
US5341872A (en) * 1993-05-19 1994-08-30 Valeo Engine Cooling Inc. Heat exchanger and manifold therefor, and method of assembly thereof

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6220342B1 (en) * 1995-02-16 2001-04-24 Zexel Corporation Laminated heat exchanger
US20050173104A1 (en) * 2003-12-08 2005-08-11 Calsonic Kansei Corporation Tank structure
US20060042309A1 (en) * 2004-09-02 2006-03-02 Visteon Global Technologies, Inc. Condenser assembly having a mounting rib
US7007499B1 (en) 2004-09-02 2006-03-07 Visteon Global Technologies, Inc. Condenser assembly having a mounting rib
EP1970661A1 (en) * 2007-03-14 2008-09-17 Sanden Corporation Heat exchanger
US9267737B2 (en) 2010-06-29 2016-02-23 Johnson Controls Technology Company Multichannel heat exchangers employing flow distribution manifolds
US9151540B2 (en) 2010-06-29 2015-10-06 Johnson Controls Technology Company Multichannel heat exchanger tubes with flow path inlet sections
US10371451B2 (en) 2010-06-29 2019-08-06 Johnson Control Technology Company Multichannel heat exchanger tubes with flow path inlet sections
US20130333867A1 (en) * 2010-12-07 2013-12-19 Valeo Systemes Thermiques Assembly Of Two Parts Crimped One Over The Other
US9546828B2 (en) * 2010-12-07 2017-01-17 Valeo Systemes Thermiques Assembly of two parts crimped one over the other
US10295278B2 (en) * 2011-05-26 2019-05-21 Valeo Systemes Thermiques Header box, heat exchanger comprising said header box and method of crimping such a box
US10228170B2 (en) 2012-12-21 2019-03-12 Trane International Inc. Refrigerant distributor of micro-channel heat exchanger
US10852075B2 (en) 2012-12-21 2020-12-01 Trane International Inc. Refrigerant distributor of micro-channel heat exchanger
US20150027666A1 (en) * 2013-07-25 2015-01-29 Yutaka Giken Co., Ltd. Heat exchanger and heat exchange device
JP2015227737A (ja) * 2014-05-30 2015-12-17 株式会社日本クライメイトシステムズ 熱交換器用ヘッダ
CN105890428A (zh) * 2015-02-16 2016-08-24 翰昂系统株式会社 热交换器的集管箱及包括该集管箱的热交换器
KR20160100821A (ko) * 2015-02-16 2016-08-24 한온시스템 주식회사 열교환기의 헤더탱크 및 이를 포함하는 열교환기
US10612865B2 (en) * 2015-02-16 2020-04-07 Hanon Systems Header tank of heat exchanger and heat exchanger having the same
US20160238326A1 (en) * 2015-02-16 2016-08-18 Hanon Systems Header tank of heat exchanger and heat exchanger having the same

Also Published As

Publication number Publication date
JPH0735491A (ja) 1995-02-07
JP3329893B2 (ja) 2002-09-30

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